The invention relates to a hill starting control method and system, and the method comprises the steps: obtaining a starting demand torque in response to the activation of an automatic parking function and the vehicle located on a ramp; an accelerator pedal signal is monitored until an accelerator pedal opening signal is received, a temporary target driving torque is obtained, and the temporary target driving torque is obtained through calculation of the gradient, the duration time when the accelerator pedal has the opening and the output torque at the moment when the accelerator pedal has the opening; comparing the temporary target driving torque with the driving torque required by the driver, taking the smaller one as the final target driving torque, and inputting the final target driving torque into a driving torque interface; and when the actual driving torque is larger than the starting demand torque, the braking force is released. According to the invention, smooth starting without dragging and backward sliding is realized.
本发明涉及一种坡道起步控制方法及系统,响应于自动驻车功能被激活且车辆位于坡道上,获得起步需求扭矩;监测油门踏板信号,直至接收到油门踏板开度信号后,获取临时目标驱动扭矩,所述临时目标驱动扭矩通过坡度、油门踏板存在开度的持续时间和油门踏板存在开度时刻的输出扭矩计算得到;比较所述临时目标驱动扭矩和驾驶员需求驱动扭矩,取较小者为最终目标驱动扭矩,将最终目标驱动扭矩输入驱动扭矩接口;当实际驱动扭矩大于起步需求扭矩时,释放制动力。本发明实现无拖滞、无后溜的平顺起步。
Hill starting control method and system
一种坡道起步控制方法及系统
2023-09-01
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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